Performance of the NA62 LAV front-end electronics

A Antonelli, G Corradi, F Gonnella, M Moulson, C Paglia, M Raggi, T Spadaro, D Tagnani, F Ambrosino, D Di Filippo, P Massarotti, M Napolitano (+7 others)
2013 Journal of Instrumentation  
The NA62 experiment [1] will measure the BR(K + → π + νν) to within about 10%. To reject the dominant background from final state photons, the large-angle vetoes (LAVs) must detect particles with better than 1 ns time resolution and 10% energy resolution over a very large energy range. A low threshold, large dynamic range, Time-over-threshold based solution has been developed for the LAV front end electronics. Our custom 32 channel 9U board uses a pair of low threshold discriminators for each
more » ... minators for each channel to produce LVDS logic signals. The achieved time resolution obtained in laboratory, coupled to an HPTDC based readout board, is ∼150 ps.
doi:10.1088/1748-0221/8/01/c01020 fatcat:4nqzlfxc5fgutmaus4tmafmmf4